Final answer:
When calcium carbonate is added to hydrochloric acid, calcium chloride, carbon dioxide gas, and water are produced. This is a typical acid-carbonate reaction and is exemplified by the antacid action of Tums.
Step-by-step explanation:
When calcium carbonate is added to hydrochloric acid, a chemical reaction occurs. This reaction is characterized by the formation of calcium chloride, carbon dioxide gas, and water.
The balanced chemical equation representing this reaction is:
CaCO3(s) + 2HCl(aq) → CaCl2(aq) + CO2(g) + H2O(l)
This reaction is a classic example of an acid-carbonate reaction, where the carbonate reacts with the hydrochloric acid to produce a salt (calcium chloride), carbon dioxide gas, and water. One of the notable applications of such reactions is the use of calcium carbonate as an active ingredient in antacids like Tums. When taken, it reacts with the stomach acid (hydrochloric acid) to provide relief from upset stomachs by neutralizing excess acid.